20312120

素因数分解:

$2^3\times 5^1\times {\mathrm{507803}}^1$

素因数の和:507814

約数の個数: 16

約数和(自身を含む): 45702360

約数和(自身を除く): 25390240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 507803, 1015606, 2031212, 2539015, 4062424, 5078030, 10156060, 20312120]

約数ペア:

[(1, 20312120), (2, 10156060), (4, 5078030), (5, 4062424), (8, 2539015), (10, 2031212), (20, 1015606), (40, 507803)]